The biggest challenges for whales is the buildup of toxic chemicals in their bodies and the shrinking runs of Chinook salmon, their primary prey.
If you see something that looks like tomato soup in Puget Sound, here's why.
A beluga whale was spotted Friday off San Diego -- the farthest south the species has been documented on the West Coast, the National Oceanic and Atmospheric Administration confirmed.
American Airlines has canceled 38 flights in and out of Phoenix on Tuesday afternoon because of extreme heat.
The sale of fishing permits has been suspended for two sites where water temperatures have risen to critically high levels, especially for salmon.
Strong winds and heavy snowfall have led to flights being delayed, trains being cancelled, and motorists told to avoid unnecessary journeys.
There was a slight rise in population numbers of the very rare animals last year.
Southern parts of the country can expect showers and thunderstorms on Tuesday, with more severe storms possibly hitting central areas by evening.
Temperatures in Finland last month were between 1.5 and 3.5 degrees Celsius warmer than normal in most parts of the country.
Meteorologists recorded a high temperature of 25.2 degrees Celsius (77 F) in the eastern town of Lappeenranta, marking the city's 40th 'hot' day this year, according to Yle forecaster Anne Borgström.
Unusually heavy rains in Lapland have caused water levels to rise near flood levels, and further rises will depend on temperatures over the next few days, with climate change being a contributing factor.
The exact virus type is still being determined, but measures are being taken to protect workers and prevent transmission to humans.
A mother and child lost their lives in an avalanche on Tuesday while skiing at Pallastunturi in northwestern Finnish Lapland.
The Food Authority noted that it might be possible that foxes are more susceptible to avian flu infections than mink. However, the agency also suggested that infection prevention protocols may not have worked as well at fox farms compared to facilities that raise mink. The authority has now confirmed avian influenza cases at a total of 42 fur farms in Finland.
One spark was all it took. The driver of the forest harvester was working a logging site at Renko in Kanta-Häme. The grapple of the machine hit a stone, throwing a spark that set the underbrush ablaze.
Finland is experiencing warm and sunny weather with temperatures ranging between 20 and 25 degrees Celsius, and an advisory for strong ultraviolet radiation has been issued for the south and southwest.
The last time Finland had this much sunshine in March was nearly a decade ago, in 2013. High pressure typically brings clear skies, and this was also the case last month in Finland.
Frost exposure and poor pollination are behind expectations for a less than ideal season, according to research institute Luke. Bilberry patches at particular risk are in the regions of South Karelia, Kainuu, Keminmaa, Ylitornio, as well as certain areas of Central and South Ostrobothnia.
Harju said that due to its long tusks, she guessed that it was an older walrus, adding that the animal was calm during the hour that she watched it lay on the beach.
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